发明名称 Distress signal device
摘要 This device is a red or orange balloon, with white lettering spelling out the word, "HELP", on both sides. The device includes a helium tank with cord retaining means thereon, and a valve device for insertion into a sleeve secured within a fitting on the neck of the balloon, and one end of the cord is secured to the balloon, and the other end is secured to the tank, which will serve as anchor means for the balloon, when the device is in use.
申请公布号 US4094267(A) 申请公布日期 1978.06.13
申请号 US19770787441 申请日期 1977.04.14
申请人 DAVIS, JR., JOHN 发明人 DAVIS, JR., JOHN
分类号 G08B5/00;G09F21/06;(IPC1-7):G09F9/00 主分类号 G08B5/00
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